CommanderLegacyVintage
Result
Infinite sacrifice triggers, Infinite death triggers, Infinite LTB, Infinite ETB, Infinite colored mana
Activate Phyrexian Altar by sacrifiicing Bloodied Ghost.
When Bloodied Ghost dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it. When it enters, Bloodied Ghost will put a -1/-1 counter on itself, removing the +1/+1 counter.
Repeat.
Component Cards
How It Works
1
Activate Phyrexian Altar by sacrifiicing Bloodied Ghost.
When Bloodied Ghost dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
2
When it enters, Bloodied Ghost will put a -1/-1 counter on itself, removing the +1/+1 counter.
Repeat.